Question

Question #bb9f7

Answer 1

19.5m East.

Explanation:

`"distance"(d) = "velocity"(v) * "time"(t)`

We know that Cassie's velocity was 6.5m/s [East], and that she ran for 3 seconds. Plugging that into the equation, we get:

`d = 6.5"m/s" *3 "s" = 19.5"m"`

Since her velocity was in a single direction, east, her displacement will be the same.

So in conclusion, Cassie had a displacement of 19.5m east.

It's always a good idea to include units in your equations, and make sure the end result has the correct unit. In our equation, we multiply meters per second by seconds. The seconds cancel out, leaving only meters behind.